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author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Mon, 25 May 2020 18:13:55 +0900
parents 1830386684a0
children
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// { dg-do compile { target c++2a } }

template<typename ...>
constexpr bool r () { return true; }

template<typename ... Ts>
  requires r<Ts...>() // { dg-error "enclose" }
void f() { }

template<typename T, T N>
  requires ++N // { dg-error "enclose" }
void f() { }

template<typename T, T N>
  requires N++ // { dg-error "enclose" }
void f() { }

template<typename T, T N>
  requires N == 0 // { dg-error "enclose" }
void f() { }

template<typename T, T N>
  requires N ? true : false // { dg-error "enclose" }
void f() { }

template<typename T, T N>
  requires N = 0 // { dg-error "enclose" }
void f() { }

template<typename T, T N>
  requires N + 1 // { dg-error "enclose" }
void f() { }

template<typename T, T N>
  requires N - 1 // { dg-error "enclose" }
void f() { }

template<typename T, T N>
  requires N.x // { dg-error "enclose" }
void f() { }

template<typename T, T N>
  requires N->x && true // { dg-error "enclose" }
void f() { }

template<typename T, T N>
  requires N && N
void f() { }

template<typename T, T N>
  requires N || N
void f() { }

template<typename T, T N>
  requires N || !N // { dg-error "enclose" }
void f() { }

template<typename T, T N>
  requires N[0] // { dg-error "enclose" }
void f() { }

template<typename T, T N>
  requires static_cast<bool>(N) // { dg-error "enclose" }
void f() { }